bors 2c0558f635 Auto merge of #43345 - matthewhammer:master, r=nikomatsakis
Profile queries

This PR implements the "profile queries" debugging feature described here:
https://github.com/rust-lang-nursery/rust-forge/blob/master/profile-queries.md

In particular, it implements the debugging flag `-Z profile-queries`

FYI: This PR is my second attempt at pushing these changes.  My original PR required a rebase; I have now done that rebase manually, after messing up with git's "interactive" rebase support.  The original (now closed/cancelled) PR is this one: https://github.com/rust-lang/rust/issues/43156

r? @nikomatsakis
2017-08-24 16:04:50 +00:00
..
2017-08-16 22:06:05 +02:00